CN108322824B - Method and system for carrying out scene replacement on television picture - Google Patents
Method and system for carrying out scene replacement on television picture Download PDFInfo
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- CN108322824B CN108322824B CN201810161722.3A CN201810161722A CN108322824B CN 108322824 B CN108322824 B CN 108322824B CN 201810161722 A CN201810161722 A CN 201810161722A CN 108322824 B CN108322824 B CN 108322824B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
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Abstract
The invention discloses a method and a system for carrying out scene replacement on a television picture, wherein the method comprises the following steps: the method comprises the steps of collecting a screenshot picture, extracting image scene information in the picture, matching the obtained image scene information with image scene information of the picture stored locally, extracting figure image data in the local picture with the highest matching degree with the screenshot picture image scene information, copying the extracted figure image data into the intercepted screenshot picture, covering the figure image data of the screenshot picture, and making a composite image, wherein if no figure image data exists in the screenshot picture, the extracted figure image data in the local picture is covered at a default position in the picture and made into the composite image. The method and the system for carrying out scene replacement on the television picture can realize the function of replacing the user picture into exquisite scenes such as movie and TV play pictures, advertisement pictures, landscape pictures and the like played on a television, so that the user has 'personally on the scene' experience.
Description
Technical Field
The invention relates to the technical field of image processing of intelligent televisions, in particular to a method and a system for carrying out scene replacement on television pictures.
Background
In recent years, the market proportion of the android system smart television is getting larger, the functions of the android system smart television are getting more and more, and the android system smart television is pursued by consumers. The smart television core generally has image analysis and processing functions, such as extracting scene information of figure number, gender, clothes, season, weather, time and the like in an image, modifying image cutting, copying, size adjustment and the like, and adjusting and beautifying parameters such as brightness, contrast, definition and the like. If the background technology is combined with the personalized requirements of the user, the function of replacing the user photos into exquisite scenes such as movie and TV pictures, advertisement pictures, landscape pictures and the like played on a television can be realized, so that the user has 'personally on the scene' experience, and finally more use enjoyment is brought to the user, and the satisfaction degree of the user is improved.
Disclosure of Invention
Based on the above background technology, an object of the present invention is to provide a method and a system for performing scene replacement on a tv picture, which can realize the function of replacing a user's photo in a fine scene such as a movie picture, an advertisement picture, a landscape picture, etc. played on a tv set, so that the user has an experience of being "personally on the scene".
In order to achieve the technical effects, the invention adopts the following technical scheme:
a method for carrying out scene replacement on a television picture comprises the following steps:
s1, acquiring a screenshot picture of a television picture and extracting image scene information in the screenshot picture;
s2, matching the acquired image scene information with image scene information of a locally stored Picture, wherein the locally stored Picture contains character image data, a file folder (such as Exchange Picture) with a specific name is generally established in a local storage module or a U disk inserted in a television for storing a Picture which needs scene replacement by a user, and the Picture must contain characters;
s3, extracting figure image data in a local picture with the highest matching degree with the scene information of the screenshot picture, and copying the extracted figure image data into the intercepted screenshot picture;
and S4, if the captured screenshot picture has character image data, covering the extracted character image data in the local picture with the character image data of the screenshot picture to prepare a composite image, otherwise, covering the extracted character image data in the local picture with a default position in the picture to prepare the composite image.
Further, in step S4, if the captured screenshot picture has character image data, when the extracted character image data in the local picture is overlaid on the character image data of the screenshot picture, the size of the character image data in the local picture needs to be adjusted until the character image in the local picture completely overlays the character image in the screenshot picture, and generally, if there is no character image data in the screenshot picture, the extracted character image data in the local picture is placed in the middle of the screenshot picture or at another suitable position by default.
Further, the method also includes step S5: automatically adjusting and beautifying at least brightness, contrast, and sharpness of the composite image.
Further, the image scene information is composed of a plurality of image matching elements, the image matching elements at least include the number of people in the image, sex, clothes, season, environment scene, time, wherein the "environment scene" image matching element can be generally named as representative scenes such as "snow land", "beach", "grassland", and the like, the "time" image matching element can be distinguished by "day" or "night", and in practice, other image matching elements such as "weather" can be added according to specific requirements.
Further, when the acquired image context information is matched with the image context information of the locally stored picture in step S2, a calculation formula of the image context information matching degree is as follows:
Y＝(X1+X2+X3+X4+X5+……+Xn)/n
wherein, Y is the image matching degree, Xn is the score value of each image matching element of the image scene information, n is the number of image matching elements, and the final image matching degree of the local picture with higher matching degree with the image matching elements in the screenshot picture is higher.
Further, the score Xn of each image matching element of the image scene information is {0, 0.5, 1}, and if the matching degree between sunlight and rain is identified as 0 in the image matching element "weather", that is, Xn is 0 at this time, the matching degree between sunlight and object shadows is identified as 50%, that is, Xn is 0.5 at this time, the matching degree between sunlight and sunlight is 100%, that is, Xn is 1 at this time, and finally, the matching degrees of the elements are summarized, so that the scene information matching degree ranking of the local photo and the screenshot can be obtained.
Meanwhile, the invention also discloses a system for carrying out scene replacement on the television picture, which comprises a storage unit for storing the local picture, a screenshot data acquisition unit for carrying out screenshot on the television picture, a data identification unit for extracting and identifying the image scene information in the picture, a data matching unit for matching the screenshot image scene information with the local picture image scene information, and a data replacement unit for copying and replacing the character image data in the screenshot picture;
the data identification unit is respectively and electrically connected with the screenshot data acquisition unit and the storage unit, the data matching unit is respectively and electrically connected with the data identification unit, and the data replacement unit is respectively and electrically connected with the data matching unit and the storage unit.
The image parameter adjusting unit is used for adjusting the size of the figure image data and adjusting the brightness, contrast and definition of the picture, and is respectively and electrically connected with the data replacing unit and the storage unit.
The remote controller comprises a screen capture data acquisition unit, a displacement starting unit and a fixed key, wherein the screen capture data acquisition unit is used for acquiring a screen capture image of a television picture, the displacement starting unit is electrically connected with the screen capture data acquisition unit, and the displacement starting unit can be arranged in the remote controller and connected with the fixed key during specific setting, namely a starting signal for capturing the screen capture image of the television picture can be sent to the screen capture data acquisition unit by pressing the set fixed key.
Compared with the prior art, the invention has the following beneficial effects:
the method and the system for carrying out scene replacement on the television pictures can realize the function of replacing the user photos into the exquisite scenes such as movie and TV play pictures, advertisement pictures, landscape pictures and the like played on the television, so that the user has 'personally on the scene' experience, and the functions of the intelligent television can be better expanded.
Drawings
Fig. 1 is a flow chart illustrating a method for scene replacement of a tv picture according to the present invention.
Fig. 2 is a schematic diagram of a system for scene replacement of a television screen according to the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the embodiments of the invention described hereinafter.
Example (b):
the first embodiment is as follows:
as shown in fig. 1, a method for performing scene replacement on a television picture includes the following steps:
s101, acquiring a screenshot picture of a television picture and extracting image scene information in the screenshot picture;
s102, matching the acquired image scene information with image scene information of a locally stored picture, wherein the locally stored picture contains character image data, a folder with a specific name is generally established in a local storage module or a U disk inserted on a television for storing a picture which needs scene replacement and contains characters; the folder name used for storing the photos that the user needs to perform scene replacement in this embodiment is: exchange Picture;
s103, extracting figure image data in a local picture with the highest matching degree with the scene information of the screenshot picture, and copying the extracted figure image data into the intercepted screenshot picture;
s104, judging whether the screenshot picture contains character image data or not;
s105, if the captured screenshot picture has character image data, covering the extracted character image data in the local picture with the character image data of the screenshot picture, and adjusting the size of the character image data in the local picture until the character image in the local picture completely covers the character image in the screenshot picture, so that a composite image is manufactured;
otherwise, the extracted person image data in the local picture is overlaid at the default position in the picture to make a composite image, and in this embodiment, the picture is specifically placed in the middle position of the picture.
S106, automatically adjusting and beautifying the brightness, the contrast and the definition of the synthesized image, and properly adjusting the color saturation, the exposure and the like of the synthesized image in practice, so that the synthesized image has better effect.
And S107, saving the adjusted and beautified synthetic image, and displaying the image on a television to realize the function of replacing the characters in the ExchangePicture photo library into the television picture scene.
Specifically, the image context information is composed of a plurality of image matching elements, and the image matching elements at least include the number of people in the image, gender, clothes, season, environment scene, and time, wherein the "environment scene" image matching element is generally named as a representative scene such as "snow", "beach", and "grass land", and the "time" image matching element is distinguished by "day" or "night", and in practice, other image matching elements such as "weather" may be added according to specific requirements.
Meanwhile, when matching the acquired image context information with the image context information of the locally stored picture, a calculation formula of the image context information matching degree is as follows:
Y＝(X1+X2+X3+X4+X5+……+Xn)/n
wherein, Y is the image matching degree, Xn is the score value of each image matching element of the image scene information, n is the number of image matching elements, and the final image matching degree of the local picture with higher matching degree with the image matching elements in the screenshot picture is higher.
And the score Xn of each image matching element of the image context information is {0, 0.5, 1}, and if the matching degree of sunlight and rain is identified as 0 in the image matching element "weather", that is, Xn is 0 at this time, the matching degree of sunlight and object shadow is identified as 50%, that is, Xn is 0.5 at this time, the matching degree of sunlight and sunlight is 100%, that is, Xn is 1 at this time, and finally the matching degrees of the elements are summarized, so that the context information matching degree ranking of the local photo and the television screenshot can be obtained.
Example two
A system for carrying out scene replacement on a television picture comprises a storage unit for storing a local picture, a screenshot data acquisition unit for screenshot the television picture, a data identification unit for extracting and identifying image scene information in the picture, a data matching unit for matching the image scene information of the screenshot with the image scene information of the local picture, a data replacement unit for copying and replacing character image data in the screenshot picture, an image parameter adjustment unit for adjusting the size of the character image data and adjusting the brightness, the contrast and the definition of the picture, and a replacement starting unit for starting the screenshot data acquisition unit to capture the television picture.
The image parameter adjusting unit is electrically connected with the data replacing unit and the storage unit respectively, and the replacement starting unit is electrically connected with the screenshot data acquisition unit.
In this embodiment, the storage unit is a usb disk plugged in a television, and a folder named exchange Picture is provided in the usb disk and is specifically used for storing a local photo that a user needs to perform scene replacement, and meanwhile, a folder named My exchange Picture is provided in the usb disk and is specifically used for storing a synthesized photo that the user needs to store and completes scene replacement.
Meanwhile, the screenshot data acquisition unit, the data identification unit, the data matching unit, the data replacement unit and the image parameter adjustment unit are all arranged in the television, the replacement starting unit is arranged in the remote controller, a scene replacement key is arranged on the remote controller and corresponds to the scene replacement key, and a left key, a right key and a confirmation key for confirming selection of a selection frame in the left-right moving display screen are further arranged on the remote controller.
In this embodiment, 4 photos are stored in the Exchange Picture folder, and the image matching elements of "number of people, sex, clothes, season, environment scene, and time" in the image scene information of the four photos are:
local photograph 1: 2 people, women, down jackets, winter, snowfield, daytime;
local photograph 2: 1 man, male, naked upper body, winter, snowfield, daytime;
local photograph 3: 1 person, female, down jacket, winter, snow, day;
local photograph 4: 1 person, female, short sleeve, summer, grassland, daytime;
if a user sees a beautiful snow scene in a television picture and wants to select the picture screenshot for scene replacement when watching a television, the user can firstly press a 'scene replacement' key for a short time so as to start the screenshot data acquisition unit to screenshot the current television picture through the replacement starting unit, and then the user can press the 'scene replacement' key for a long time to start the data identification unit to extract the picture intercepted by the screenshot data acquisition unit and identify the image scene information in the picture;
in this embodiment, the image matching elements of "number of people, sex, clothes, season, environment scene, time" in the image scene information in the screenshot image are identified by the data identifying unit as follows:
1, young women, red longuette, winter, snowfield, daytime;
and the data identification unit identifies that the image matching elements of 'number of people, sex, clothes, season, environment scene and time' in the image scene information in the local picture are respectively as follows:
local photograph 1: 2 people, women, down jackets, winter, snowfield, daytime;
local photograph 2: 1 man, male, naked upper body, winter, snowfield, daytime;
local photograph 3: 1 person, female, down jacket, winter, snow, day;
local photograph 4: 1 person, female, short sleeve, summer, grassland, daytime;
the data matching unit calculates the matching degree of the scene information of 4 photos in "Exchange Picture" in the usb disk according to the extracted data, and the specific calculation formula is as follows:
Y＝(X1+X2+X3+X4+X5+……+Xn)/n
wherein Y is the image matching degree, XnIs a score value of each item of image matching element of the image scenario information, and n is the number of image matching elements.
Then Y ═ X in this example1+X2+X3+X4+X5+X6) 6; wherein:
X1a score value of an image matching element that is the number of human beings in image scene information of a certain picture;
X2is the score value of the image matching element of the character gender in the image scene information of a certain picture;
X3is a score value of an image matching element of clothing of a person in image scene information of a certain picture;
X4is the score value of the image matching element of the season in the image scene information of a certain picture;
X5is the score value of the image matching element of the environment scene in the image scene information of a certain picture;
X6is a score value of an image matching element of time in image scene information of a certain picture.
Then, the data matching unit calculates the matching degree to obtain:
the image matching degree Y of the local photograph 1 is (0+1+0.5+1+1+1)/6 is 0.75, that is, the image matching degree of the local photograph 1 is 75%;
the image matching degree Y of the local photograph 2 is (1+0+0+1+ 1)/6 is 0.67, that is, the image matching degree of the local photograph 1 is 67%;
the image matching degree Y of the local photograph 3 is (1+1+0.5+1+1+1)/6 is 0.92, that is, the image matching degree of the local photograph 1 is 92%;
the image matching degree Y of the local photograph 4 is (1+1+0+0+ 1)/6 is 0.5, that is, the image matching degree of the local photograph 1 is 50%.
It can be known from the above that, if the image matching degree of the local photo 3 is the highest, the data replacement unit extracts the person part in the local photo 3 and covers the person part in the screenshot picture, adjusts the size of the person part to completely cover the person in the screenshot picture, and meanwhile, beautifies the brightness, contrast and definition of the synthesized image through the image parameter adjustment unit to form a final replacement picture.
And displaying the synthesized image on the television Picture, thereby realizing scene replacement of the local photo 3 and the characters in the television screenshot, enabling a user to operate a 'left' key, a 'right' key and a 'confirm' key to perform character replacement on other local photos in the 'Exchange Picture', and selecting the synthesized photo to be stored in a 'My Exchange Picture' folder in the U disk to be stored.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (2)
1. A method for performing scene replacement on a television picture is characterized by comprising the following steps:
s1, acquiring a screenshot picture of a television picture and extracting image scene information in the screenshot picture; the image scene information is composed of a plurality of image matching elements, and the image matching elements at least comprise the number of people in the image, gender, clothes, seasons, environmental scenes and time;
s2, matching the acquired image scene information with image scene information of a locally stored picture, wherein the locally stored picture comprises figure image data; the calculation formula of the image scene information matching degree is as follows:
Y＝(X1+X2+X3+X4+X5+……+Xn)/n
wherein Y is the image matching degree, XnIs a score value of each image matching element of the image scenario information, and n is the number of image matching elements; score value X of each image matching element of the image scenario informationn＝{0，0.5，1}；
S3, extracting figure image data in a local picture with the highest matching degree with the scene information of the screenshot picture, and copying the extracted figure image data into the intercepted screenshot picture;
s4, if the captured screenshot picture has figure image data, covering the figure image data in the extracted local picture with the figure image data of the screenshot picture to prepare a composite image, otherwise, covering the figure image data in the extracted local picture with a default position in the picture to prepare the composite image;
s5: automatically adjusting and beautifying at least brightness, contrast, and sharpness of the composite image.
2. The method of claim 1, wherein in step S4, if the captured screenshot has character image data, the size of the character image data in the local picture is adjusted when the extracted character image data in the local picture is overlaid on the character image data in the screenshot picture until the character image in the local picture completely overlays the character image in the screenshot picture.
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| CN109361879A (en) * | 2018-11-29 | 2019-02-19 | 北京小米移动软件有限公司 | Image processing method and device |
| CN111178167B (en) * | 2019-12-12 | 2023-07-25 | 咪咕文化科技有限公司 | Method and device for checking lasting lens, electronic equipment and storage medium |
| CN113656269B (en) * | 2021-07-30 | 2022-07-19 | 深圳市悦道科技有限公司 | Control method based on smart television application software |
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